Clencher-tire-retaining device.



S. BARNETT.

GLENCHER TIRE BETAINING DEVICE.

APPLIUATION FILED SEPT. 0, 1912.

Patented Dec.31, 1912.

UNITED STATES PATENT OFFICE.

SAMUEL BABNETT, 0F TIP'ION, ENGLAND, ASSIGNOB TO JOSEPH DARIUB GRIFFIN,OF LONDON, ENGLAND.

CLENCHER-TIRE-'BETAINING DEVICE.

Specification o! Letten Patent.

Patented Dec. 31, 1.912.

Application led September 9, 1912. Qerlal No. 719,471.

To all whom. it may concern:

Be it known that I, SAMUEL BARNETT, a subject of the Kingdom of GreatBritain, residing at Orchards, Burnt Tree, Tipton, in the county ofStafford, England, brickmaker, have invented certain new and usefulImprovements in or Relating to Clenclier- Tire-Retaining Devices, ofwhich the following`is a specification.

his invention comprises certain improvements in or relating to wheelrims suitable for use in connection with the road wheels of automobilesand the like, and it has for various of its several objects tofacilitate the placing of a tire cover upon the rim, to provide a bettermode and means for securing the tire and to produce a rim which hasconsiderable advantages as compared with those heretofore used orproposed.

My invention in its most desirable form i l n n consists in thecombination of dual inclined surface portions with an expansible hoop,the characteristic feature being that the inclined surface portions havea substantially constant declivity from points at or near the clenclierportions of the rim sections to a position at or near thc centerthereof. No impediment is therefore offered to the sliding of the edgesof the hoop member along a considerable part of the width of each of theinclined surface portions when one rim section is displaced toward theother, and this arrangement therefore provides for a material and fullysiiflicient range of expansion of the hoop entirely by the operation ofdisplacing one inclined surface portion toward the other.

Other features of the present invention are referred to hereinafter andincluded in the appended claims.

In order that this invention may be clearly understood and more readilycai'- ried into practice, reference may be iad to the appendedexplanatory drawings, upon which Figure 1 is a perspective view of asection of one form of wheel rim constructed in accordance with thepresent invention. Fig. 2 is a similar view of a modified form of theinvention illustrating also a form of security7 member which may be usedin connection with the resent invention. Fig. 3 is a similar view ilustrating a further moditication, and Fig. 4 is a part side elevationof the arrangement shown in Fig. 3. Fig. 5 is a perspective view, insection, of a further modification of my invention. Fig. G is a similarview of a still further modification. Fig. 7 is a similar view of astill further modification. Fig. 8 is a similar view of a still furthermodification.

According to this invention the rim a adapted for the reception of thetire cover, instead of being substantially flat or level across itscentral part, is formed in two halves or rim sect-ions a1 a2 havinginclined surface portions or flanges a3, a* meeting in the center insuch a manner that when the rim sections a1, az are assembled together acradle formation is provided around the peripliei'y of the wheel. Beforethe tire cover is placed in position between these two rim sections, afiat hoop member b, split to per mit of expansion, is positioned so thatthe beads rest u on the outer periphery of the hoop. The atter is thenplaced in position upon one rim section, the second rim scction is thenassembled, and on the one rim section being displaced toward the otherby bolts or any suitable means c the split. hoop b slides up theinclined surface portions of the rim sections a1, at' respectivelythereby expanding and forcing the beads of the cover into the elencherportions of the rim sections for their reception and forming aneffective seating for the tire cover. The split hoop Z), expanded oroperated as aforedescribed acts as a substantial security member aroundthe entire circumference of the wheel while there is no ditlieulty inassembling tlie cover as the split hoop will contract before beingplaced in Position and will thus accommodate the new tires as well asold.

If necessary or desirable security members of the form shown at d, Fig.2, may be employed adapted to take a position upon or adjacent to theouter surface of the hoop member, and to be placed in relation to thetire cover before assembling, said security members having hook shapedextensions or lugs d1 which embrace the beads of the tire at differentpoints, the other parts of the tire being sup orted when the whole isassembled by tie rim sections. member (l has a member such as d, mount-Such a security ed more or less centrally, said member dV having for itspurpose to take a position between the beads of the tire cover therebkee ing the beaded edges of the latter we l un er the clencher portionsof the rim sections a, a.

The combination such as aforedescribed may be used in cases in which itis not pro- )osed to construct the device so that it may e detached fromthe felly, that is to sa as shown in Fig. 1, for instance whichilustrates the invention in the form it would take as a plied to thepermanent felly of a wheel. lln Fig. 1 f is the wooden felly of thewheel and the rim sections al, a2 take the form shown in the drawings,the rim section a1 being furnished with a flange a through the medium ofwhich the rim section a* is drawn toward the rim section a2.

In the arrangement shown in Fig. 2 both of the rim sections have anannular box formation of body giving considerable strength, the one boxformation being adapted to slide upon an annular flange a." provided uon the other box formation. A slightly dii erent arrangement is shown inFig. 8 in which the tightening members c instead of passing through thebox part of the rim sections are incorporated in the vforni of bossesprovided at the inner face of the riin section and furnished with tongueclamping members such as cx by which the lateral ressiire is brought tobear upon the movable rim section.

In a further modification (F ig. 5) the one side section a1 may besecured to the other side section a2 by a bayonet or other equivalent ena ement consisting for instance of hea e studs It adapted to take intokey hole recesses h so that the parts can be engaged by placing themtogether with the heads It rojectin through the ke hole slots la. afterwhic by a slight re ative rotation of the one rim section with respectto the other, the two parts are etlicicntl locked together and can be soretaine by any suitable means. As an example of such means 1 may employa screwed stem having a tapered neck z" Fig. 6 adapted to take within asuitably shaped perforation in the rim section which is to ie displacedso that upon tightening the screwed stein z' by a nut '2 or the like thetaper surface of the same bears within the perforation and therebyslightly displaces the movable section a1 and effectively retains it inthe slightly displaced osition until the screwed stem is again witidrawn or released. According to a still further arrangement the annularflan e provided upon the one rim section a,z a an e such as shown inFig. 7 is furnished wit a referably shallow outstanding annular ange j*or side web in which arrangement the movable section a of the rim issplit or cut at one point in its circumference to permit of its beingexpanded over the side flange .7" into a position in which it isembraced by the same.

What I claim as m invention and desire to secure by Letters atent is 1.A clencher tire retaining device for vehicle wheels comprising incombination, lat- 'erally se arable rim sections having inturned cencher portions for engagement with the beads of the tire, said rimsections having surface portions extending toward the center of thedevice and inclined radially inwardly with respect to the wheel, and anexpansible hoop adapted to be ex- Eanded by said surface portionsagainst the ottoms of the beads to force the latter into said clencherportions upon inward movement of one rim section toward the other,substantially as described.

2. A clencher tii'e retaining device for vehicle wheels, comprisinglaterally separable rim sections having inturned clencher ortions forengagement with the beads o the tire said rim sections havinor flangesextending toward the center of the device and inclined radially inwardlywith respect to the wheel, an expansible hoop disposed on said inclinedflanges, and means closing the rim sections to en a i'e the clencherportions with the beads of t e tire and expand the hoop against thebottoms of the tire beads, one of said rim sections having a flangeengaging beneath the com anion rim section to maintain said inclineflanges in predetermined relation with respect to each other,substantially as described.

3. A clencher tire retaining device for vehicle wheels, comprisinglaterally separable rim sections having inturned clencher portions forengagement with the beads of the tire, said rim sections having flangesextending toward the center of the device and inclined radially inwardlywith respect to the wheel, an ex ansible hoop surrounding said flangesang adapted to extend beneath the beads of the tire, a plate sectiondisposed on said hoop and having lugs embracing tlie beads of the tire,and means for closing said rim sections to engage the clencher portionsagainst the tire beads and expand the hoop toward the bottoms of' saidbeads, substantially as described.

4. A clencher tire retaining device for vehicle wheel, comprisinglaterally separable rim sections having inturned clencher portions forengagement with the beads of the tire, said rim sections havin flangesextending toward the center of t e device and inclined radially inwardlywith respect to the wheel, an expansible hoop surrounding said flangesand adapted to extend beneath the beads of the tire, a plate sectiondisposed on said hoo and havin lugs outwardly embracing t o beads of t etire, a flanged 5l expand said hoop member toward the bot- Witnesses:

A scribed.

device oir-said plate seetiOn eng-aging the In` witness AWlheleovf Ihave hefelilliaoA set vifnnelr1 faces vof said tire. beads, and. measLVmy hemd'` in the presence of twowitnesses. Or (c Osing said rim setionstov engage t eV j cleneher'portins against the tire beads and S. BRNETT.

tOms of said beads,- -substantiallyi as de- 'ARTHUR BROWN; HOLLISBROWN.4

` copies o! this patent may be obtained for ve -eents 4each, byaddressing the Commissioner qt latenti,

l y -Washingtom D. c. 1

